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Quantum Simulations

Content About: Quantum Simulations

Ana Maria Rey has been appointed a NIST Fellow as of August 21,2017 by the Acting Director of NIST. JILA is a research and training partnership between the University of Colorado and NIST, and Ana Maria is one of the several JILA Fellows who are NIST employees. Ana Maria was named a NIST Fellow in recognition of her world-leading program in quantum theory, her pioneering work in quantum many-...

The Rey and Ye groups discovered the strange rules of quantum baseball earlier this year. But now, quantum baseball games happen faster, and players (dipolar particles) are no longer free to move or stand wherever they want. Players must not only be stronger to jump and catch the balls (photons), but also more organized. At the same time, they must be good spinners. And, only a small amount of...

JILA and NIST labs are well on the way to creating astonishingly accurate optical atomic clocks based on the neutral atoms strontium (Sr) and ytterbium (Yb). The new technologies are already capable of the most meticulous timekeeping in human history.

JILA Fellow Jun Ye’s group has developed an optical atomic clock that uses neutral Sr atoms held in an optical lattice (i.e., crystal of...

Because quantum mechanics is crucial to understanding the behavior of everything in the Universe, one can understand key elements of the behavior of a neutron star by investigating the behavior of an atomic system in the laboratory. This is the promise of the new quantum simulator in the Ye labs. It is a fully controllable quantum system that is being used as a laboratory to study the behavior...

News Flash! The Rey group has discovered another good reason for using alkaline-earth atoms, such as strontium (Sr) or Ytterbium (Yb), in experimental quantum simulators. Quantum simulators are systems that mimic interesting materials or mathematical models in a very controlled way. The new reason for using alkaline earth atoms in such systems comes from the fact that their nuclei come...

In 2008, the Ye and Jin groups succeeded in making ultracold potassium-rubidium (KRb) molecules in their ground state (See “Redefining Chemistry at JILA” in the Spring 2010 issue of JILA Light & Matter). Their next goal was to figure out how to precisely control chemical reactions of these ultracold polar molecules by manipulating the quantum states of the reactants. But first the...

“Nature is built quantum mechanically,” says Fellow Jun Ye, who wants to understand the connections between atoms and molecules in complex systems such as liquids and solids (aka condensed matter). He says that the whole Universe is made of countless interacting particles, and it would be impossible to figure out the myriad connections between them one particle at a time, either theoretically...

JILA Researchers are exploring quantum simulation with two systems: The Sr-lattice optical atomic clock in the Ye labs and the KRb ultracold molecules in the Jin-Ye lab. Both simulators rely on JILA’s exquisite precision measurement capabilities.

The Sr-Lattice Clock Simulator

With a few technical modifications, the Jun Ye group’s Sr-lattice optical atomic clock has been...

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